Safe fuel vapor generator

The invention discloses a safe fuel vapor generator. The safe fuel vapor generator comprises a controller, a support (1), a shell (9) fixed to the support (1), an outer container (2) installed in the shell (9), an inner container (3) arranged in the outer container (2), a combustor (6) arranged on the shell (9), an outer container water lever gauge (8), an outer container pressure sensor (7) and a water adding device, wherein the outer container water lever gauge (8) and the outer container pressure sensor (7) are arranged on the shell (9). The inner container (3) is connected with the water adding device through a pipeline. The gas outlet of the inner container (3) is connected with a valve. The output end of the outer container water level gauge (8) and the output end of the outer container pressure sensor (7) are both connected with the input end of the controller. One output end of the controller is connected with the combustor (6). The other two output ends of the controller are connected with the water adding device and the valve respectively. By means of the safe fuel vapor generator, the combustion efficiency can be greatly improved, and the safe fuel vapor generator is safer and more reliable.